<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>index页面</title>
</head>
<body>
HelloWorld
<%
for(int i=1;i<10;i++){
	System.out.println("   "+i);
	// jsp的内置对象out 用于向页面输出内容 等价于  response.getPrintWriter.write 
	out.write("   "+i);
}
%>
</body>
</html>